tree 39e3e11f0f48d40abd0541ba8b031089f5b33efb
parent 71949be349f9c13752a86d07b5c9d0cac289ec24
author Changcheng Xiao <xchangcheng@google.com> 1531828182 +0200
committer Changcheng Xiao <xchangcheng@google.com> 1531838981 +0200

DeleteRef: remove its factory

This commit removes the factory of DeleteRef and moves
the required ProjectState to the method parameters. This
commit makes this class to be a pure operation class
without inner state. Therefore it could be marked as a
@Singleton.

Change-Id: I0b43eaefa258eb89277a054d9278f52714827e05